Stem winding and setting watch



(No Model.) 2 Sheets-Shet 1 C. P. COR-LISS. STEM WINDING AND SETTING WATCH.

. No. 503,527. Patented Aug. 15, 1893.

2 Sheets-Sheet 2.

G. P. CORLISS. STEM WINDING AND SETTING WATCH.

(No Model.)

No. 503,527. Patented Aug. 15, 1893.

WZZMM/ %Mo%h4 M ya/lob dwxaumfiw UNITED STATES PATENT OFFICE.

CHARLES P. CORLISS, OF ELGIN, ASSIGNOR TO THE ELGIN NATIONAL IVATCII COMPANY, OF CHICAGO, ILLINOIS.

STEM WINDING AND SETTING WATCH.

SPECIFICATION forming part of Letters Patent No. 503,527, dated August 15, 1893.

Application filed March 29, 1893.

To all whom it may concern:

Be it known that 1, CHARLES P. Oonmss, a citizen of the United States, residing at Elgin, in the county of Kane, and in the State of Illinois, have invented certain new and useful Improvements in Stem inding and Setting Watches; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which- Figure 1 is a perspective View from the front, of a watch containing my improvement, the dial being removed and the winding and setting train shown in winding engagement. Fig. 2 is a plan View of the same with the parts ready for the setting engagement, but locked out of such engagement. Fig. 3 is a like view of the watch after the setting engagement has been effected. Fig. 4c is a perspective View of said watch from the rear, the back plate and time train being removed, and the parts arranged in winding engagement. Fig. 5 is a plan View of the same with the case stem in longitudinal section and said parts arranged for winding engagement. Fig. 6 is a like view of the Watch after the stem arbor has been drawn to the outer limit of its longitudinal motion, and Fig. 7 is a plan view of the same after the setting engagement has been effected.

Letters of like name and kind refer to like parts in each of the views.

My invention relates to watches in which the winding and setting operations are effected wholly through the longitudinal and rotary movements of a stem arbor that has no positive connection with the movement, and it is intended to prevent unintentional displacement of the hands in case that the stem arbor is accidentally drawn to the outer limit of its motion when taking the watch from the pocket, to which end my said invention consists in a watch in which the stem driven train is locked out of setting engagement until the stem arbor is partially rotated, substantially as and for the purpose hereinafter specified.

In the carrying of my invention into practice, any form of winding and setting mechanism in which there is a normal setting en- 50 gagement may be employed and a sufficient illustration of the principle involved will be Serial No. 468,097. (No model.)

afforded by showing its application to one form. In such form there is journaled be tween the dial plate A and the back plate B of a watch movement, a cannon pinion C which is axially in line with and is adapted to receive the inner end of a stem arbor D that is j ournaled within the stem or pendant e of a watch case E, and is arranged to have a rotary motion, and to be longitudinally movable within certain limits and to be yieldingly locked at each limit of such motion.

Pivoted upon the front of the dial plate A is a wheel F, which engages with and may be rotated by the pinion C, and upon the pivotal bearing G of said wheel is pivoted a yoke II that has the form shown. At one end of such yoke is pivoted a pinion I, which is in constant engagement with the wheel F, and, by the movement of said yoke, may be en gaged with or disengaged from the Winding wheel K of the movement, while to the opposite end of said yoke is pivoted another pinion L that is in constant engagement with said wheel F and may be swung into or out of engagement with a dial wheel M, the arrangement being such that when either the winding wheel or the dial wheel is engaged, the other wheel is free.

Pivoted upon the lower side of the dial plate A, is a plate N, which is provided with one arm n that occupies a position adjacent to the inner end of the cannon pinion C, and has a second arm n, which is in engagement with a stud 7L that projects from the end of the yoke H, adjacent to the pinion L, rearward through said plate A. A pin 71 projects from the plate N, at a point opposite to the arm at, forward through said plate A, and (:ngages with a spring 0, that is secured to said dial plate and operates to press the pin a toward the center of the movement and through said plate N, the arm n and the stud h, to hold the yoke H with a yielding pressure in position to produce a setting engagement.

WVithin the cannon pinion C, is a pin 0, that is adapted to move longitudinally therein, and has its outer end in engagement with the inner end of the stem arbor D, and its inner end in engagement with the armn of the pivoted plate N. The length of the pin or intermediate piece c, is such that when said stem arbor is at the outer limit of its longitudinal motion, the action of the spring 0 is not impeded, but when said arbor is moved to the inner limit of its longitudinal motion, it operates to turn said plate N, and by the action of its pin W, to press back and confine the free end of said spring and leave the yoke Hentirely free from its influence, when, by the action of a second, relatively weak spring P, said yoke is turned to and held in position to produce a winding engagement. As arranged, it will be seen that when the spring 0 is left free to act by the outward movement of the stem arher, it overcomes the weaker spring P and produces a setting engagement, but when thrown out of action by the inward movement of said stem arbor, said spring P is at liberty to and will produce a winding engagement.

Pivoted upon or within the outer face of the plate A, near the pendant e, is a pawl Q, which, by the action of an arm 0 of the spring 0, is held in engagement with the teeth of the wheel F, and has such a form of its engaging end as to enable it to trip over said teeth in either direction. Said pawl extends from its pivotal bearing under the spring 0, and over the rear side of the pin n while from the rear edge of the pawl, an arm q extends, in a hooked form, around said pin. WVhen now, the stem arbor is drawn outward, the action of the spring 0 causes the pawl Q, to move into engagement with the wheel F, and the hooked arm q to engage with the pin 72 and thus operate to lock the parts in the position occupied before the withdrawal of said stem arbor, but if the latter is turned in either direction, the action of the teeth of said wheel, will cause said pawl to swing upon its pivot, and by such motion said pin will be released from engagement with said hooked arm, and the spring 0 will then produce a setting engagement. When the stem arbor is at the inner limit of its motion, said pawl trips harmlessly over the teeth of the wheel F.

As arranged, it will be seen that the construction affords perfect security against the moving of the hands, should the stem arbor he accidentally drawn outward, and,also, under such circumstances, prevents the stem driven train from engagement with the dial wheels and, thereby, a derangement of the time by the imposition upon the dial works of a materially larger load than they were intended to carry.

Having thus described my invention, What I claim is 1. A stem winding and setting watch in which the winding and setting engagements are produced by means of a stem arbor that is adapted to be rotated and moved longitudinally, and the stem driven train is locked out of setting engagement by means of a device which may be released by causing said stem arbor to be partially rotated, in either direction, substantially as and for the purpose specified.

2. In a stem winding and setting Watch in which the winding and setting engagements are effected by means of a rotatable and longitudinally movable stem arbor, a device for locking the stem driven train out of setting engagement which is adapted to be released by a partial rotation of said stem arbor in either direction, substantially as and for the purpose shown.

3. In a stem winding and setting watch in which the winding and setting engagements are effected by means of a rotatable, longitudinally movable stem arbor that has no positive connection with the movement, a device for locking the stem driven train out of setting engagement, which is adapted to be released by a partial rotation of said stem arbor in either direction, substantially as and for the purpose set forth.

l. In a stem winding and setting watch in which the winding and setting engagements are effected by means of a rotatable, longi tudinally movable stem arbor, a device for locking the stem driven train out of setting engagement which is set by a longitudinal movement of the stem arbor, and is adapted to be released by a partial rotation of the same in either direction,substantially as and for the purpose shown and described.

In testimony that I claim the foregoing I have hereunto set my hand this 23d day of December, 1892.

CHARLES P. CORLISS.

Witnesses:

GEO. E. HUNTER, OAnLos H. SMITH. 

